If you have DSOTSC installed then killing the Red Wizards is a MUST. One of them has a UBER mage robe (usable only by evil allignment IIRC). I always take Edwin in my parties so I just make sure the Wizards (or at least the talking one) all dead before the head-wizard gets a chance to talk to me. Its supreme munchkinism I know, but thats what DSOTSC is all about